Title :
A new frequency focussing transform for the array processing based on pseudo-inverse matrix technique
Author :
Zhou, Mingyong ; Bennette, John ; Okamoto, Jiro
Author_Institution :
Radio Wave Propagation Lab., Monash Univ., Clayton, Vic., Australia
Abstract :
In this paper, a new frequency focussing transform (FRFT) based on pseudo-inverse matrix technique is proposed for array processing of coherent wideband signals. The proposed FRFT is a non-unitary transform, but has straight-forward geometric interpretation. The computation burden is compared with those of SVD (singular value decomposition)-based frequency focussing transforms and the numerical examples are illustrated
Keywords :
Gaussian noise; array signal processing; direction-of-arrival estimation; frequency-domain analysis; matrix inversion; transforms; DOA estimation; SVD; array processing; coherent wideband signals; computation burden; frequency focussing transform; geometric interpretation; non-unitary transform; numerical examples; pseudo-inverse matrix technique; sensor array; singular value decomposition; Array signal processing; Covariance matrix; Fourier transforms; Frequency domain analysis; Gaussian noise; Information processing; Laboratories; Sensor arrays; Smoothing methods; Wideband;
Conference_Titel :
TENCON '96. Proceedings., 1996 IEEE TENCON. Digital Signal Processing Applications
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-3679-8
DOI :
10.1109/TENCON.1996.608853
